Stuffing-box.



PATENTED MAY 19,1908.

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A. G. HBGGEM. STUFPING BOX APPLICATION FILED FEB-15, 1908.

witnuoea UNITED STATES PArENT OFFICE.

Alll lil'll) I'. ll 156 i llM, Ql" UORAUIOLIS, PENNSYLVAXIA, ASSIGNQR 'lO OIL WELL SUPPLY I,\;\' Y. UF PIT'ISBURG, PENNSYLVANIA, A UQRPORATION OF PENNSYLVANIA STUFFING-B OK.

, Specification a Letters Patent.

Patented May 19, 1908.

Application filed February 16, 1908. Serial No. 416,082.

-. of Pennsylvania, have invented certain new and useful Improvements in Stuffing-Boxes; and I dohereby declare the followingto be a full, clear, and exact descri tion of the inven tion, such as will enable Ot lIGIS skilled in the art to which it ap'pertains to make and use the same.

My invention,- while' relating generally to stufiing boxes for piston and similar rods, has

been especially devised for use with pumpn rods employed in connection with the operation of oiland Artesian wells, and has for its several ob ects the provision of means for controlling the amount of the 'pressureof the gland upon the packing, the prevention of' an .disarrang'ement of the alinement of the i'olowerland and rod during the adjustmentof t e pressure, the provision of means whereby the position of the follower gland with relation to the follower-head, packin and pump-rod may be manually adjuster when required, the simplification and strengthening of' the follower-head, and, finally, the )rovision of means whereby wrenches and ike tools commonly employed for ad'usting the follower-gland may be dispense with. a

It is wellunderstood by those em ing this class ofdevices that any lack o a mement betweenithe pump-rod or piston-rod and the follower-gland of the stufiin box, or any excess of pressure of the fol owergland on the packing, and of the packing on the rod, will result, not only in loss of efliciency, but also in excessive wear of the packing and permanent injlury to the rod.

0 ObVlittB'tllBSG conditions combine with a stufiing-box -for the reception of the packing and a follower-head therefor, said followerhead havin hand-ho1es to ermit the manipulation and adjustment 0 an independent follower-gland, and said parts being adjust- -ably connected by concentrically disposed screw-threads, a follower-gland independent of the follower-head but controlled thereby, a packing, a ring su port for the packing and a s rin inter OStX between the ring and stu :box, w ereby not only will therpressure 0 the fluid -to be packed act with, and not against, the spring, but the adjustment of the-gland to secure the desired pressure on the packing, and to takeup wear may be ma'dewithout disturbing the alinement of the follower-"land and rod: and such a comi .bination of elements in substantially the re lation noted embodies one feature of my invention.

In order to make provision for the ready adjustment of both the follower-head and head is provided at opposite points with ears or lugs whereon are pivoted levers or arms which normallyhang close to the stuffingbox, said lugs or ears b ein extended downwardly to strengthen the ollower-head and to thereby permit holes in the walls of the head for the inspection and manipulation of the follower-gland: and such matters embody further features of my invention.

In the drawing accom anying this s ecification and illustrative 0 one form of c evice embodying my invention, Figure l is a longitudinal central section of the device; Fig. a side elevation thereof;'Fi .3isalong1tudinal central section of the follower-head; and Fig. 4 ,is a top. lan view of the follower-head. Like symbo s refer to like parts. wherever they occur.

I 'i'll now roceed to describe my inven tion more ful y so that others skilled in the same.

1n the drawings, 1 indicates the stuflingbox having two concentric chambers, the upper, 2, being for the rece tion of the packing and the lower, 3, being esigned for the passage o the wiston rod or pump rod R. The cham r 3 of such diameter as will preclude any contact between the box'and rod, but is ofsufiicientl less diameter than chamber 2 to afford a s ioulder or seat 4 for the rece tion of a s packing w en the spring is omitted.

Both ends of the box 1 are threaded, the up er end, as at 5, for the reception of a fol ower-head adjustable thereon, and the lower end, as at 6, for attaching the stuffingbox to the welltubing, or its equivalent. Immediately above the threaded portion 6, the box may bc'provided with a polygonal wrench-surface 7.

supported on the shoulder or seat 4 thereof, isproferably located a coiled spring 8, or other equivalent spring, such as rubber or the formation of hand art to which it appertains may apply the.

ring, or of a ring support for t e follower-gland, when required, the follower ithin the chamber 2 of the box 1 and omitted if desired.

on these .lugs are levers or arms horizontal wrench for rotating the head on the box to lower-head. This extension other resilient material; but, under some conditions, the spring'8 may be entirely Immediately above the spring 8, Whenthe same is used, is a ring 9 which is preferably concave'on its upper surface to more effectively support and act upon the usual, or any suitable, packing material 10. Projecting into the up er end of the chamber 2 and bearing direct y on the packing 10 is the annular follower-gland 11 which is independent of, or separate from, the fol:

lower-head, and which is preferably concave at its lower end where it presses upon the 'h vided with hand packing. a

12 indicates the follower-head, It is formed as a separate member, and is provided with a suitable o ening for the passage of the rod R. v This fol ower-head 12 and the stuliing-box 1 are adjustably connected by means of the screw threads 5 and similar threads formed upon the interior of said head, said threads being concentric with the ump rod openings of the head and stufi'lng ox.

13 indicates lugs or cars arranged on opposite sides of the follower-head l2.r Pivoted 14, which normally hang close to the sides of the stuffing-box 1', but which may be raised ,to the position and used in lieu of a apply the desired pressure through the fol lower-gland 11 to the packing 10. When in use'the arms 14 are prevented from rising above the horizontal position by ledges cast on the head. j The lugs or ears 13 are referably extended downward on the f0 owerhead to the lower end thereof so as to transfer all stresses from the arms or levers 14 directly to the threaded portlon of the folof the lugs 13 also serves to reinforce the follower-head so that large hand-holes 15 may; be formed Having thus described my invention, What 7 I claim and desire to secure by Letters Patent is:

1. The combination with av stuffing-box aving screw-threads, of a follower-headprO- threads which are adapted to engage the threads upon the stuffing-box to thereby ad j ustably connect said members, an independent follower-gland acted on by the followerhead, and a yieldingly supported packing acted on by the follower-gland.

2. The combination with a 'stuffingbox and itsfollower-gland and packing, of a follower-head provided with pivoted arms, said stuffing-box and justably connected on each. 1

The combination with a stufling box having a longitudinal opening therethrough, of a follower-gland independent of the follower-head, a packing, and a follower-head having a pivoted lever and a hand-hole, said follower-head and stufiing-box being adjustably connected by screw-threads formed concentric with the opening through the by screw-threads formed stufiing-box. V

In testimony whereof Iafiix my signature, in presence of two subscribing witnesses. ALFRED: G.'HEGGEM.

Witnesses:

LOUIS Cabfanns, W. WT.-A NDERSON.

holes and having screwi follower-head being ad- 

